alleryA boat of still-water speed 8 km/h goes 30 km with a 2 km/h current. How long is the trip downstream?
A2 hours
B5 hours
C3 hours
D4 hours
Answer & Solution
Correct answer: C. 3 hours
Downstream speed is 10 km/h, so 30 / 10 = 3 hours.
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